Triple
T16485788
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Gare Centrale |
E400434
|
entity |
| Predicate | hasAmtrakCode |
P18202
|
FINISHED |
| Object |
MTR
MTR is the Amtrak station code for Montreal Central Station, a major intercity rail hub in Montreal, Canada.
|
E1015555
|
NE FINISHED |
How this triple was built (5 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: MTR | Statement: [Gare Centrale, hasAmtrakCode, MTR]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MTR Context triple: [Gare Centrale, hasAmtrakCode, MTR]
-
A.
MTR
MTR is the station code for Matara railway station, a key terminus on Sri Lanka’s coastal railway line.
-
B.
MTR urban lines
MTR urban lines are a network of rapid transit railway services forming the core of Hong Kong’s mass transit system, particularly serving dense urban areas such as Kowloon.
-
C.
MTR Nordic
MTR Nordic is a Swedish public transport company that operates and manages rail and metro services, including the Stockholm metro, as part of the global MTR Corporation group.
-
D.
MTR Tuen Ma line
The MTR Tuen Ma line is a major heavy-rail metro line in Hong Kong that runs across the New Territories and Kowloon, connecting eastern and western districts through key residential and commercial areas.
-
E.
MTR Light Rail
MTR Light Rail is a local light rail transit system in Hong Kong’s northwestern New Territories, providing frequent, short-distance services that connect residential areas with major MTR heavy rail lines.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: MTR Triple: [Gare Centrale, hasAmtrakCode, MTR]
Generated description
MTR is the Amtrak station code for Montreal Central Station, a major intercity rail hub in Montreal, Canada.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MTR Target entity description: MTR is the Amtrak station code for Montreal Central Station, a major intercity rail hub in Montreal, Canada.
-
A.
MTR
chosen
MTR is the station code for Matara railway station, a key terminus on Sri Lanka’s coastal railway line.
-
B.
MTR urban lines
MTR urban lines are a network of rapid transit railway services forming the core of Hong Kong’s mass transit system, particularly serving dense urban areas such as Kowloon.
-
C.
MTR Nordic
MTR Nordic is a Swedish public transport company that operates and manages rail and metro services, including the Stockholm metro, as part of the global MTR Corporation group.
-
D.
MTR Tuen Ma line
The MTR Tuen Ma line is a major heavy-rail metro line in Hong Kong that runs across the New Territories and Kowloon, connecting eastern and western districts through key residential and commercial areas.
-
E.
MTR Light Rail
MTR Light Rail is a local light rail transit system in Hong Kong’s northwestern New Territories, providing frequent, short-distance services that connect residential areas with major MTR heavy rail lines.
- F. None of above.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: hasAmtrakCode Context triple: [Gare Centrale, hasAmtrakCode, MTR]
-
A.
railroadCodeFor
chosen
Indicates that a specific railroad code is assigned to or used to identify a particular railroad entity.
-
B.
isRailServiceOf
Indicates that a particular rail service operates for, belongs to, or is provided by a specified entity (such as a route, operator, or network).
-
C.
operatorFleetNumberRangeAmtrak
Indicates that the operator’s fleet numbers for the referenced Amtrak vehicles fall within a specified numeric range.
-
D.
hasRail
Indicates that something is equipped with, includes, or is connected to a rail or rail system.
-
E.
hasRailRoute
Indicates that there exists a rail-based transportation route or connection between the related entities.
- F. None of above.
Provenance (6 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69d883813098819084f5409539723b59 |
completed | April 10, 2026, 4:58 a.m. |
| NER | Named-entity recognition | batch_69e32e068fac8190a0971f548848fcfe |
completed | April 18, 2026, 7:08 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a00582275308190a0fb3944d74916cf |
completed | May 10, 2026, 10:04 a.m. |
| NEDg | Description generation | batch_6a0058a1c51c81908f49db448a4d0365 |
completed | May 10, 2026, 10:06 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a00595837c4819093f1a1a35185bc4b |
completed | May 10, 2026, 10:09 a.m. |
| PD | Predicate disambiguation | batch_69e22706b0588190a48a951c5211a617 |
completed | April 17, 2026, 12:26 p.m. |
Created at: April 10, 2026, 5:13 a.m.